Counterweighting device for winding machines



Dec. 23, 1930. J. A. CAMERON COUNTERWEIGHTING DEVICE FOR WINDINGMACHINES Filed 001;. 18, 1928 ATTORNEY Patented Dec. 23, 1930 UNITEDSTATES PATENT OFFICE JAMES A. CAMERON, OF BROOKLYN, NEW YOiR-K ASSIGNORTO CAMERON MACHINE COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF NEWYORK COUNTERWEIGHTING DEVICE FOR WINDING MACHINES Application filedOctober 18, 1928. Serial No. 313,277.

with a counterweighting device consisting of a plurality of weightsflexiblycarried as by a sprocket chain that passes over a sprocket. Themain feature of this inventionis to provide means whereby the sameend'may be accomplished by a weight, carried by a rigid arm.

In the accompanying drawings the invention is disclosed in a concreteand preferred" form in which: r

Fig. 1 is a view partly inside elevation and partly in section, of amachine embodying the invention Fig. 2 is a view looking in thedirection of arrow 2 of Fig. 1, partly in elevation and partly insection;

Fig. 3 is aview. in elevation of the upper part of Fig. 1 showing theparts adjusted to a difierentposition; and

Fig. 4 is a sectional detail View substantially on the plane of line 44of Fig. 1.

The character of the winding machine may vary widely, but, in thepresent instance, the

winding means comprise two drums 1 and 2.

3 indicates slitting means which mayor may not be employed. The memberto be counterweighted and which is displaceable by accumulation of woundmaterial may be either a winding shaft or a top 'pressureroll. In thepresent instance, 4 is a winding shaft and 5 is a top pressure roll, andthe invention can be adequately explained by assuming that the toppressure roll is the displaceable member to be counterweighted.

-6 indicates a pivotally supported arm that turns in response to thedisplacement of a member such as 5, and 7 is a weight mounted on the'arm, saidv weight moving lengthwise of the arm in response to theturning movement of the arm.

The particular means for effecting these movements may, of course, varywidely but in the present case they are constructed as follows: j

Displaceable member 5 is supported by a carriage 8 that slides on guides9 of the framework. 10 is a sprocket wheel at the upper end of themachine over which passes chainll attachedat one end to carriage 8 andhaving at its other end a counterweight 12 sliding on inclined ways 13.Sprocket 10 is carried by shaft 14 which, in turn, supports arm 6. Ashere shown, the parts are so related that while displaceablemember 5moves from its lowermost position (indicated in full lines in Fig. 1) toits uppermost position (indicated in dotted lines in Fig. 1) arm 6 willmove from its full line position at one side of its pivotal axis to thedotted line position at the other side thereof, thus describingapproximately one-half of a revolution. 15 is a cam constituting a meansfor shifting weight 7 lengthwise of arm 6 in response to the turningmovement of the latter. It will now be clear that any desired movementof weight 7 may be obtained by having difierently shaped cams 15; In thepresent instance, cam 15 is so shaped that, as arm 6 moves toward thevertical, weight 7 moves toward center 1e, and, as arm 6 passes over thevertical and moves downwardly on the other side, weight 7 will be movedoutwardly. The effect of these movements is to decrease theeffectiveness of weight 7 as it rises thereby lessening the pressure ofmember 5 against 4:, and to increase its efiectiveness on the other sideof the center so as to still further lessen the pressure of 5 against4-. Cam 15 may also be adjusted around center 14., which it looselysurrounds, by means of slot 16 and set-screw 17. The effect of anadjustment of this character is indicated in Fig. 3. By substitutingdiflerent cams or by different adjustments ofcam 15, the amplitude ofmovement of weight 7 can be controlled.

The detail construction of weight 7 is preferably as follows: as shownin Fig.4, weight 7 is preferably made of two parts 7 and 7 response tothe displacement of the member,

w ardly a weight on the arm, and means to move the weight lengthwise ofthe arm in response to the turning movement of the arm.

2. In a winding machine, a member updispaceable by accumulation of woundmaterial, and counterweighting means for said member including: apivoted arm, means to turn said arm on its pivot in response to thedisplacement of the member,

a weight on the arm, and means to move the weight in opposite directionslengthwise or the arm in response to the turning moven'lent of the arm.

3. In a. winding machine, a member up wardly displaceable byaccumulation of wound material, and counterweighting means for saidmember including: a pivoted arm, transmission means, actuated by thedisplacement of the member, to move the arm from a position at one sideof its pivotal axis to a position at the other side thereof, a weight onthe arm, and means to move the weight lengthwise of the arm in responseto the turning movement of the arm.

4-. In a winding machine, a member upwardly displaceable byaccijin'mlation of wound material, and counterweighting means for saidmember including: a pivoted arm, transmission means, actuated by thedisplacement or" the member, to move the arm from a position at one sideof its pivotal axis to a position at the other side thereot, a weight onthe arm, and means to move the weight in opposite directions lengthwiseof the arm in response to the turning movement of the arm.

5. In a winding machine, a member upwardly displaceable by accumulationof wound material, and counterweighting means for said member including:a pivoted arm, transmission means, actuated by the displacement of themember, to move the arm from a position at one side of itspivotal axisto aposition at the other side thereof, a weight on C3 the arm, andmeans to move the weight, in

response to the turning movement of the arm, lengthwise of the arm firsttoward the pivotal axis thereof while traveling on one side of saidaxis, and thereafter away from said axis while traveling on the otherside thereof.

6. In a winding machine, a member upwardly displaceable by accumulationof wound material, and counterweighting means for said member including:a pivoted arm, means to turn said arm on its pivot in re sponse to thedisplacement of the member, a weight on the arm, and a cam to move theweight lengthwise of the arm in response to the turning movement of thearm.

'7. In a winding machine, a member upwardly displaceable by accumulationof wound material, and counterweighting means for said member including:a pivoted arm, means to turn said arm on its pivot in response to thedisplacement of the member, a weight on the arm. and a cum to move theweight in opposite directions lengthwise oi the arm in response to theturning movement of the arm.

8. In a winding machine, a member upward ly displaceable by accumulationof wound material, and counterweighting means for tion at one side ofits pivotal axis to a position at the other side thereof, a weight onthe arm. and a cam to move the weight lengthwise ot the arm in responseto the turning movement of the arm.

9. Ina windingmachine, a member up wardly displaceable' by accumulationof wound material, and counterweighting means for said member including:a pivoted arm, transmission means, actuated by the displacement of themember, to move the arm from a position at one side of its pivotal axisto a position at the other side thereof, a weighton the arm, and a camto move the weight in opposite directions lengthwise ot' the arm inresponse to the'turning movement of the arm.

10. In a winding; machine, a member upwardly displaceable byaccumulation of wound. material, and counterweightii'ig means for saidmember including: a pivoted arm, transm' ion means, actuated by thedisplacement ol the member, to move the arm from a position atone sideof its pivotal axis to a position at the other side thereof, a weight onthe arm, and a cam to move the weight, in response to the turningmovement of the arm, lengthwise ot the arm first toward the pivotal axisthereof while traveling on one side of said axis, and thereafter awayfrom said axis while traveling on the other side thereof.

11. In a winding machine, a member upwardly displaceable by accumulationof wound material, and counterweighting means for said member including:a pivoted arm, means to turn said arm on its pivot in response to the'dsplacement of the member, a weight on the arm, means to move theweight lengthwise of the arm in response to the turning movement of thearm, and means to vary the amplitude of the lengthwise movement of theweight.

12. In a winding machine, a member upwardly displaceable by accumulationof wound material, and counterweighting means for said member including:a pivoted arm,

means to turn said arm on its pivot in response to the displacement ofthe member, a weight on the arm, a cam to move the weight lengthwise ofthe arm in response to the turning movement of the arm, and means toadjust the position of the calm to thereby vary the amplitude of thelengthwise movement of the Weight.

13. In a winding machine, a member up- Wardly displaceable byaccumulation of Wound material, and count erweighting means for saidmember including: a sprocket, a fleX- ible connection between the memberand the sprocket, an arm to turn with the sprocket, a

weight on the arm, and means to move the weight lengthwise of the arm inresponse to the turning movement of the arm.

14. In a winding machine, a member upwardly displaceable by accumulationof wound material, and counterweighting means for said member including:a sprocket, a fleX- ible connection between the member and thesprocket, an arm to turn with the sprocket, a weight on the arm, and acam to move the weight lengthwise of the arm in response to the turningmovement of the arm.

15. In a winding machine, a member upwardly displaceable by accumulationof wound material, and counterweighting means for said member including:a sprocket, a flexible connection between the member and the sprocket,an arm to turn with the sprocket, a weight on the arm, and an arcuatecam to move the weight lengthwise of the arm in response to the turningmovement of the arm.

Signed at the city of New York, in the borough of Brooklyn, county ofKings, and State of New York, this 8 day of October, 1928.

JAMES A CAMERON.

